<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<!-- 外部引用 -->
		<script src="./js/demo.js"></script>
		
		<!-- 内部使用 -->
		<script>
			var a = 10;
			var b = 6;
			var tmp = a+b;
			alert(tmp);
		</script>
	</head>
	<body>
	</body>
</html>
